Pith Number

pith:4BH2QO4N

pith:2006:4BH2QO4NVOLHBFRGTJ3YF2TJT5

not attested not anchored not stored refs pending

A New Probe of Dense Gas at High Redshift: Detection of HCO+(5-4) Line Emission in APM 08279+5255

J. Gracia-Carpio, L. J. Tacconi, M. Guelin, P. A. Vanden Bout, P. Cox, P. M. Solomon, P. Planesas, R. Neri, S. Garcia-Burillo

arxiv:astro-ph/0605656 v1 · 2006-05-25 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BH2QO4NVOLHBFRGTJ3YF2TJT5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:58:47.868312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e04fa83b8dab967096269a7782ea699f6d64db51c2c2a30deb568dd1339569a1

Aliases

arxiv: astro-ph/0605656 · arxiv_version: astro-ph/0605656v1 · doi: 10.48550/arxiv.astro-ph/0605656 · pith_short_12: 4BH2QO4NVOLH · pith_short_16: 4BH2QO4NVOLHBFRG · pith_short_8: 4BH2QO4N

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4BH2QO4NVOLHBFRGTJ3YF2TJT5 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e04fa83b8dab967096269a7782ea699f6d64db51c2c2a30deb568dd1339569a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "871d7f4de311b1ea4fbf67ad782afcdaed6f1fda00d698b3fe774c0fa2b29bc9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-25T22:04:14Z",
    "title_canon_sha256": "6b01b9571846b44ff218833e847d7e896e162a91bd8500e46299412486caf356"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605656",
    "kind": "arxiv",
    "version": 1
  }
}